Home / 385,280.55-577,920.83-208,133.55

Finding the Fourth Proportional to 385,280.55, 577,920.83 and 208,133.55

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Solution

The fourth proportional to 385,280.55, 577,920.83 and 208,133.55 is: 312,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,280.55 : 577,920.83 = 208,133.55 : x
  2. Step 2: Convert to fraction form
    385,280.55/577,920.83 = 208,133.55/x
  3. Step 3: Cross multiply
    385,280.55x = 577,920.83 × 208,133.55
  4. Step 4: Simplify right side
    385,280.55x = 120,284,712,926.18
  5. Step 5: Solve for x
    x = 120,284,712,926.18/385,280.55
  6. Step 6: Final answer
    x = 312,200.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.